Hi Gary,
I’d posted a query few weeks back about Preview not reproducing the colours properly whereas in Photoshop the colours looked fine. (http://macmost.com/forum-poor-colour-reproduction-in-preview.html) I’ve stumbled upon what the problem was, so in case others are interested, here’s the issue.
I was creating my Photoshop files in CMYK colour mod, which when exported to JPEG was poorly reproducing itself in Preview.
In RGB mode, this problem doesn’t crop up. I have no idea why this should be, my light/colour theory is weak, but in case anyone has the same issues, just remember to create in RGB mode.
Thanks!
— Dhruv
I'm wondering if the problem is because your monitor is set to reproduce colours via RGB and not CMYK?
Like you, I'm rather clueless about all this colour stuff, but I thought CMYK was used almost exclusively in the printing industry.